Suppose that a particle has position s(t) feet at time t seconds and a velocity function s'(t)=3sin(t) ft/s. Find the displacement (change in position) from

Suppose that a particle has position s(t) feet at time t seconds and a velocity function s'(t)=3sin(t) ft/s. Find the displacement (change in position) from time t=0 seconds to time t=pi seconds.